Automatic test file, github https://github.com/h3nr1ke/teste_api

card.spec.js

/**
 * API testing example
 * API used
 * @see https://magicthegathering.io/
 *
 * This example is part of the post
 * @see https://medium.com/@hdeodato/teste-autom%C3%A1tico-de-api-rest-usando-com-node-js-mocha-chai-6aec4613d100
 *
 * @author Henrique Deodato
 * @see twitter.com/hdeodato
 */

/**
 * Load the needed libraries
 * Mocha is not here, since it is the test runner 
 */
var should = require("should");
var request = require("request");
var chai = require("chai");
var expect = chai.expect;
var urlBase = "https://api.magicthegathering.io/v1";

// Create our test case, we need to inform the description
describe("magicthegathering.io API test",function(){
  // the it function do the test, in this case, the endpoint /cards, that should return 100 cards max
  it("Should return 100 cards max",function(done){
    request.get(
      {
        url : urlBase + "/cards"
      },
      function(error, response, body){

        // convert the response to json
        var _body = {};
        try{
          _body = JSON.parse(body);
        }
        catch(e){
          _body = {};
        }

        // using chai expect function, lets check the result
        expect(response.statusCode).to.equal(200);

        // now, we check if the property cards is avaliable
        if( _body.should.have.property('cards') ){
          // if true, lets check the length
          expect(_body.cards).to.have.lengthOf.at.most(100);
        }

        done(); // callback the test runner to indicate the end...
      }
    );
  });

  it("Should receive the card 'Heedless One' ",function(done){
    // lets check the name and artists name
    request.get(
      {
        url : urlBase + "/cards?name=Heedless One" 
      },
      function(error, response, body){

        // object 2 json
        var _body = {};
        try{
          _body = JSON.parse(body);
        }
        catch(e){
          _body = {};
        }

        // sucesso (200)?
        expect(response.statusCode).to.equal(200);

        // do we have cards?
        if( _body.should.have.property('cards') ){
          // do we have at least one?
          expect(_body.cards).to.have.lengthOf.at.least(1);

          // check the first card
          if(_body.cards[0].should.have.property('artist')){
            expect(_body.cards[0].artist).to.equal('Mark Zug');
          }
          if(_body.cards[0].should.have.property('name')){
            expect(_body.cards[0].name).to.equal('Heedless One');
          }
        }

        done(); // callback
      }
    );
  });
});